on the other hand, he's also attacking medicare, and that directly impacts me and my patients. and that worries me a bit. >> reporter: whoever wins, first day that they're in office, what's the most important thing that they can do? >> i'd like to hear that they're going to cross partisan lines and sit down and solve the problems. >> i really would like to see the cheerleader come out in whoever wins to instill the confidence because this country needs it. >> reporter: brian, no one knows for sure just how many undecided voters there are. the romney team believes that it's a higher percentage than what the pollsters are saying. so tonight in effect this will be a little bit like match.com. these two candidates will be trying to win the hearts and minds of those who are still undecided between now and the first tuesday in november. >> tom brokaw in colorado. we'll be talking to you along the way tonight as well. thanks. >>> and our live coverage begins right here on this nbc station, 9:00 eastern, 6:00 pacific later tonight. >>> after a vast manhunt along the arizona/mexico bord